Loom for weaving tufted fabrics.



No- 799,563. PATENTBD SEPT. 12, 1905. T. W. HEAD. LOOM FOB, WEAVING TUPTED FABRICS.

Arrmcnmn FILED Nov. 28, 1904.

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LOOM FOR WEAVING 'I'UFTED FABRICS.

APPLICATION FILED NOV. 28, 1904.

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PATBNTBD SEPT. 12, 1905.

T. W. HEAD.

APPLICATION FILED NOV. 28, 1904.

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LOQM FOR WEAVING TUFTED FABRIGS.

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THOMAS. WILLIAM HEAD, OF BRIDGNORTH, ENGLAND, ASSIGNOR OF ONE-HALF TO H. AND U. SOUTHWELL LIMITED, OF BRIDGNORTH,

ENGLAND.

LOOIVI FOR WEAVING TUFTED FABRICS.

Specification of Letters Patent.

Patented Sept. 12, 1905.

Application filed November 28, 1904. Serial No. 234,692.

To all whmn it may concern.-

Be it known that I, THOMAS WILLIAM HEAD, foreman of carpetworks,a subject of the King of Great Britain and Ireland, residing at 39 VVhitburn street, Bridgnorth, in the county of Salop, England, have invented new and useful Improvements in Looms for Weaving Tufted Fabrics, of which the following is a specification.

This invention relates to improvements in looms for weaving tufted fabrics, and especially to that class of carpets or other fabrics wherein tuftyarn is inserted in spaces between the warp-threads and are then bound by weft-threads being passed across them through openings or sheds between the said warp threads, the said weftthreads being then beaten up to the fell of the fabric; In looms for making this description of fabric it is necessary that the warp-threads be fine and that the spaces between them be large enough to admit tufts of a size suflicient to cover well the surface of the fabric and leave the position of the warp-threads unmarked that is, conceal them completely. The use of fine warp-threads necessitates the insertion of a great amount of weft to give body to the fabric, and the result is that an unevenly-balanced fabric is produced, owing to the said Warp and weft threads being out of proportion; and the object of this invention is to remedy this objection, which is done byweaving extra threads longitudinally in the back of the fabric and in the spaces between-the ordinary warp-threads where the tufts are inserted, the said extra threads being manipulated, as hereinafter described, so that they cause no obstruction to the insertion of the tufts.

In carrying out this invention I employ divisions or spaces in or between the reeds of the slay used for beating up the weft, through which divisions or spaces the aforesaid extra threads pass, so that they alternate with the ordinary warp-threads, as will be more fully hereinafter described, with referenceto the accompanying drawings.

In the drawings, Figure 1 represents a longitudinal section of part of a loom for weaving tufted fabrics sufficient to illustrate my invention. Fig. 2 represents an elevation of the same looking in the opposite direction while the tuftingyarns are being inserted.

Fig. 3 represents a front elevation of a portion of the slay. Fig. 4 represents a front elevation and transverse section of a portion of the comb, and Figs. 5 and 6 represent enlarged longitudinal sections illustrating the fabrics having the additional longitudinal threads woven therein.

Referring to Figs. 1 and 2, 1 is the beam, on which the ordinary warp-threads 2 and 2* are wound, the said warp-threads passing from the beam 1 round the whip-roll 8 to the healds 4 5, thence between the controllers 6 of the extra longitudinal or warp threads and through the slay 7 to the fell of the fabric. 9 is a beam on which the extra longitudinal or warp threads 10 and ordinary stuflingthreads 10* are wound, the said threads passing from the beam 9 round the whip-roll 11 to a heald or heddle 12, thence the threads 10 passing through the controllers 6 and also through the slay 7 to the fell of the fabric.

held at the necessary distance apart at their upper and lower ends, respectively, in cases or clamps 14 and 15. The healds l: and 5 for manipulating the ordinary warp-threads 2 and 2* are operated in the usual manner by cams on the camshaft 13, which shaft also carries the cam 15 for operating the heald 12, through which the extra longitudinal or warp threads 10 pass. Connected to the frame 16 of the heald 12 are arms 17, from which studs 18 project. On these studs 18 are suspended rods 18*, fastened at their lower ends to the upper case or clamp 14 of the rods 6 carrying the controllers 6, While the lower case or clamp 15 is connected by rods 19 to the upper ends of levers 20, pivoted at their lower ends to the frame of the machine and acted upon by cams 21, suitably timed to give at the required periods oscillating movements to the controllers 6. Theextra longitudinal or Warp threads 10 normally occupy the spaces between the ordinary warpthreads 2, 2*, and 10*, and when used in what is known as a two-needle loom they (the threads 10) separate the upper and lower sheds and constitute extra stufling-threads extending straight through the fabric, as shown in Fig.

5. When tufts are about to be inserted, the

depresses the controller 6, and at the same time the cams 21 by acting on the levers 20 cause the controllers 6 to move forward, whereby the portions of the extra longitudinal or warp threads 10 between the whip-roll 11 and the fell of the fabric are carried down ward and forward from between the ordinary warp-threads to the position shown in Fig. 2, so that the tuft-yarns can be inserted between the ordinary warp-threads. The whip-roll 11, round which the extra warp-threads 10 pass, has an arm 23, carrying a weight 24, which tends to maintain the extra longitudinal or warp threads taut. To the whip-roll 11 is also attached a lever 22, and the lower end of this lever 22 is connected by a rod 25 to a lever 26, suspended on a stud 27 on the frame of the loom, the said lever 26 carrying an antifriction bowl or roller 28, acted on by a cam- 29 on the cam-shaft 13. The cam 29 is timed to come into action at the same time that the controllers 6 are moving downward and forward, so as to take the pressure of the weight 24, and thus remove the strain of the extra longitudinal or warp threads from the controllers 6 while the said extra warps are being depressed into the position shown in Fig. 2; When the tuft-yarns have been inserted between the ordinary warp-threads, a shot of weft is beaten up by the slay against the fell of the fabric. The depending ends of the inserted tufts may be bent upward round the beaten-up weft by any suitable means. If a comb be used for the purpose, the teeth 30 of the comb, as shown in Fig. 4:, have recesses 31 therein, into which recesses the extra longitudinal or warp threads enter while the comb is pressingupward the depending ends of the tufts, and thus prevent the said comb from pressing upward either the ordinary warpthreads or the fabric, after whichthe tufts are severed from the tuft-yarns. When a fabric with extra longitudinal or warp threads, as hereinbefore described, is woven in what is known as a single-needle loom, the controllers 6 are raised and lowered at the same timethat the ordinary thin warp-threads are operated to form the sheds therein, the extra longitudinal or warp threads in addition being operated to clear the spaces between the ordinary warp-threads, in the manner hereinbefore described, to admit of the insertionof the tuft-yarns.

1 claim as my invention 1. A loom for weaving tufted fabrics wherein tuft-yarn is inserted in spaces between the warp-threads and bound by weft-threads, comprising means for carrying and manipulating the ordinary warp-threads, means for carrying extra threads in the spaces between the ordinary warp-threads and means for operating the extra warp-threads to move them both vertically and longitudinally to admit of the tuft-yarn being inserted in the spaces between the ordinary warp-threads.

2. A loom for weaving tufted fabrics wherein tuft-yarn is inserted-in spaces between the warp-threads and bound by weft-threads,comprising means for carrying and manipulating theordinary warp-threads, means for carrying extra warp-threads in the spaces between the ordinary warp-threads and means for lowering and raising the extra warp-threads and means for simultaneously moving said extra warp-threads longitudinally to admit of the tuft-yarn being inserted in the spaces between the ordinary warp-threads.

3. A loom for weaving tufted fabrics wherein tuft-yarn is inserted in spaces between the Warp-threads and bound by weft-threads,comprising means for carrying and manipulating the ordinary warp-threads, means for carrying extra warp-threads in the spaces between the ordinary warp-threads, a heald, and means for operating said heald for lowering and raising the said extra warp-threads, in combination with a series of controllers working in conjunction with the heald for moving the extra warp-threads longitudinally.

4. A loom for weaving tufted fabrics wherein tuft-yarn is inserted in spaces between the warp-threads and bound by weft-threads, comprising means for carrying and manipulating the ordinary warp-threads, means for carrying extra warp-threads in the spaces between the ordinary warp-threads, a heald, and means for operating said heald for lowering and raising the said extra warp-threads, in combination with a series of controllers of the extra threads working in conjuction with the heald,and means for operating the controllers, so as to cause them to move the said extra threads in a longitudinal direction while they are being lowered and raised by the heald.

5. A loom for weaving tufted fabrics wherein tuft-yarn is inserted inspaces between the warp-threads and bound by weft-threads, comprising means for carrying and manipulating the ordinary warp-threads, means for carrying extra warp-threads in the spaces between the ordinary warp-threads, means for lowering and raising the extra warp-threads, means for simultaneously moving said threads longitudinally and means for removing the strain of the extra warp-threads, from the controllers, while the said extra warp-threads are being moved into position to admit of the tuft-yarns being inserted between the ordinary warpthreads.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

THOMAS WILLIAM HEAD.

Witnesses:

H. EMERY FULLER, E. HARKER. 

